Hammer



(No Model.) I

o. J. GRELLNER. v

HAMMER.

No. 253,279. Patented Feb. 7,1882.

Fi i. 2,.

akjdsww 7% I UNITED STATES PATENT OFFICE.

- CHRISTOPHER J. GRELLNER, OF ST. LOUIS, MISSOURI.

HAMMER.

SPECIFICATION forming part of Letters Patent No. 253,279, dated February7, 1882. i

To all whom it may concern:

Be it known that I, CHRISTOPHER, J. GRELL- NER, of St. Louis, in thecounty of St. Louis and State of Missouri, have invented certain new anduseful Improvements in Hammers; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,which form a part of this specification, and in which Figure 1 is avertical cross-section of a hammer head and handle embodying myimprovement. Fig. 2 is a top view of the hammerhead. Fig. 3 is a detailview of the peculiarly-constructed wedge for fastening the hammer-headupon its handle; and Fig. etis asimilar view of a wedge ofaslightly-modified construction, which is designated for use where myimprovement is applied to wooden malletheads.

Similar letters of reference indicate corresponding parts in all thefigures.

The object of my improvement is to provide a simple and efficient meansof attachment of a hammer or mallet head upon its handle; and to thisend it consists in the combination, with the head and handle, of apeculiarly-constructed wedge or fastening device, substantially ashereinafter more fully set forth, and particularly pointed out in theclaims.

In the annexed drawings, A represents the hammer-head, which may be ofany desired size and construction, and has a cylindrical aperture, B,for the insertion of the handle 0. The eye or aperture B has twogrooves, b. and b, opposite to one another, and the handle 0 has anannular groove, 0, which, when the handle is inserted into its eye, willbe in aline with the rounded lower ends, a, of the grooves b b in thehammer-head, which said grooves or recesses extend only about two-thirdsdown into the head, as will be seen by reference to Fig. 1.

The fastening devices or wedges D are of iron, of the shape shown inFig. 3, with a lower bent or hooked end, d, having a notch, 6, eachwedge being somewhat longer than the depth of the Application filed June28, 1881. (No model.)

groove or recess 11, into which it is inserted. On the right side of thehammer-handle in Fig. 1 of the drawings I have shown the wedge D as itappears when inserted into its appropriate groove b and before itisrammed down, while on the opposite or left-hand side I have shown thewedge after it has been rammed down withits top flush with thehammer-head. In this process of ramming down the wedge or fastener D itsnotched and hooked end at wm,

by the rounded bottom a of the groove b, be driven into the wood'of thehandle at the anholes 0, the notch 12 operating to facilitate thebending of the hooked end, which will fasten it and the hammer-headfirmly upon the handle, so that it cannot by any possibility fly off.

If desired, the annular groove or channel 0 in the handle may bedispensed with, as the hooked and pointed ends ofthe wedges will workinto the wood without it.

here the wedges D d are to be used with a wooden mallet-head I prefer toconstruct them with aprojecting spur, f, as shown in- Fig. 4, which, indriving the wedge home in its recess, will work into the wood of thehead at the same time that the point d'works into the wood of thehandle.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States- 1. The hammer or mallet head A,having the cylindrical handle bore or eye B and grooves or recesses b1), extending from the top of the head down into the same andterminating in rounded shoulders at a, substantially as and for thepurpose herein shown and set forth.

2. The combination of the hammer-head A, having eye B and grooves orchannels I) I), rounded at their terminal points a a, wedges D D,terminating each in a notched hook, d, and the handle 0, substantiallyas shown and described, for the purpose set forth.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature

